Machine for bending jacquard hooks



(No Model.) I 3 Sheets-Sheet 1.

R. 0, M ANVI'LLE. MACHINE FOR'BENDING JAGQUARD HOOKS.

No. 515,347. Patented Feb. 27, 1894.

g I 4 l/msvirom' 3 Sheets-Sheet 2.

(No Model.)

B. 0.- MANV ILLE; MAGHINB FOR BENDING JAGQUARD HOOKS.

Patented Feb. 27

wAnmnanm. n. a.

(No Model.) 3 S11ee1;s-Sheet- 3.

R 0 MANVILLE MAGHINE FOR BENDING JAGQUARD HOOKS.

No. 515,347.- Patented Feb. 27, 1894'.

w W E,

ROBERT C. MANVILLE, CF .WATERBURY, CONNECTICUT.

MACHINE FOR BENDING JACQUARD HOOKS.

SPECIFICATION forming part of Letters Patent No. 515,347, dated February27, 1894.

Application filed May 15, 1893. $erial No. 474,235. (No model.)

To all whom it may concern.-

Be it known that l, RoBERnG. MANVILLE, a citizen of the United States,residing at Waterbury, in the county of New Haven and State ofConnecticut, have invented a new and Improved Machine for BendingJacquard Hooks, of which the following is a true and exact description,reference being had to the accompanying drawings, which form a partthereof.

My invention relates to a machine forbending Jacquard hooks, and has forits object to provide a machine for bending these or similar articlesfrom wire quickly and in such a manner that the resulting bent articlescan be relied on always to be uniform; and to this end it consists incertain details of construction and combinations of parts which will bemore specifically pointed out in the claims appended to thisspecification and forming a part thereof.

Heretofore it has been customary to bend Jacquard hooks by hand, firstbending the hook (marked in Figure 10 of the accompanying drawings)which is carried by the lowerhook plate, then bending the wire so as toform two arms of suitable length (this bend is marked 7.0 in Fig. 10);and finally bending the hook and trimming it by a cutter or other toolso as to form a suitable hook for the upper hook plate. My hook bendingmachine, first bending the wire into two arms of suitable length; then,preferably when the wire is held fast by the mechanism which forms thetwo arms,turns one end of the wire over so as to form a smooth roundhook (as w on the end of one arm, and bends the wire sharply so as toturn the end of the other arm into a hook (as 103) suitable for theupper griff hook; and then when the griff book has been properly turned,cuts or trims the end thereof so as to give it a proper inclination.

My invention is best understood as described in connection with thedrawings in which is illustrated a machine constructed according to myinvention and in which Fig. 1 is a front elevation of my machine. Fig. 2is a plan view showing the various cams and operative parts in position.Fig. 3 is a side elevation looking from the left of Fig. 1. Fig. 4 is adetail of a feeding bar taken on the line cv-x of Fig. 1. Fig. 5 is adetail of the feeding device. Fig. 6 is a detail View of the tucker.Fig. 7 is an enlarged detailed view of the mechanism used to turn one ofthe bends on the Jacquard hook. Fig.8 is an enlarged detailed View ofthe mechanism used to bend the other or griff hook on aJacquard hook.Figs. 9 and 10 are detail views. Fig. 11 is a plan view of the apparatusfor bending the hook to shown in operation, and Fig. 12 is a view of thecam which operates the clamping mechanism.

In bending wires to form Jacquard hooks a straight Wire as 10 Fig. 1 isbent to the form shown at w Fig. 8, the hooks to and w are respectivelyturned and bent, and the end of hook 10 is then trimmed so as to form asuitable griff hook.

In my machine for forming Jacquard hooks, T is a table supported onsuitable standards T and having journaled to itin supporting standardsas T shafts C C and a driving shaft R. The shafts C C are driven bymeans of gears D C on the shafts R and C respectively and bevel gears asccconnecting the shafts C C On the shafts C C are certain cams as C C&c., which serve to actuate a series of bending and other mechanismswhich form a finished Jacquard hook froma straight piece of wire.Supported on the table T by means of standards a is a support or feedingboard 75 on which straight pieces of wire are placed of a suitablelength; guides t serve to conduct the wires into a vertical slot orgroove formed in the upright standards a which are preferably madelaterally adjustable to serve for different lengths of wires. In thesides of the standards a are arranged feeding mechanisms, which,asshown,consist of two beveled plates D fitted 'in and guided incorresponding recesses in the standards (1 These plates are ICO adjustedby shifting the standards a any desired length or size of hook can bemade.

The construction of the tucker A and its coacting mechanism is bestshown in Fig. 6, where the tucker A is shown in perspective. On a frameF secured to the table T is fastened a plate A, behind this is thetucker A which has a recess or slot at of sufficient width to embraceand fit over the plate A, grooves as a a are arranged as shown in whichthe Wire fits which is to be bent. The tucker is properly guided byguides as a and is reciprocated by a link 0 which is operated by aroller Working in a pull and push cam O, which is preferably so arrangedas to give a slow forward movement and a quick return so as to move thetucker A slowly when it is bending a wire and withdraw it quickly whenthe hook is completed.

The bending mechanism consists of several devices which will bedescribed in detail. On a standard n secured to the table T, (as bestshown in Fig.,7,) is pivoted a plate N which has a Vertical hole nformed in its front end; in said hole is secured a hollow sleeve N sothat it will turn in the hole in the plate N. On the lower end of thesleeve is formed a small gear n, and below the gear at is convenientlyarranged a guide wheel at in which is secureda pin n Within the sleeve Nisa spindle O which is secured to apivoted lever 0 which lever isoperated by a cam O to raise and lower the spindle O at proper times.The lever c has a head 0' with a slot 0 therein and is secured on theupper end of the spindle by a bolt as 0. Pivoted at m is a segmentalrack M which is arranged to engage with the gear wheel at; the teeth mof this rack are eccentric to the pivotal point m, that is, the teeth atm are farther from the pivot on than are those at 721*, but by adjustingthe pivot m in the slot m of the rack this eccentricity can be changedas desired. The rack M is also preferably provided with a guide at mwhich fits around the guide wheel n, and is operated by alink 'm pivotedto the rack and to an arm 0 which is actuated by a suitable cam 0 AframeG is arranged on the table T in front of rack M just described andcarries and guides other devices which are best shown in Figs. 8 and 11.To arod H secured to the frame G is fastened a light spring h whichtends to hold the lever c which is pivoted at h in a raised position. Tothis lever c at one end is secured a flap as h and at the other end aroller which engages a cam C which operates on occasions to depress thatend of the lever which carries the flap k for a reason to be hereinafterexplained. Sliding in a bevel groove g in the frame G is a rack G whichis provided with teeth at g and is pivoted at G to the arm 0 which isoperated by a suitable cam O to reciprocate the rack G. Secured betweentwo journals G G6 on the face of the frame Gis a gear wheel G whoseteeth g mesh with the teeth of the rack. Arranged to revolve with saidgear wheel G but free to move vertically through the gear wheelGr is aspindle G this spindle has a pin 9 secured therein which fits inahelical groove 9 formed in the lower journal G6 and the result of thisconstruction is to rotate and reciprocate the spindle G4 when the gearwheel is rotated by the reciprocation of the rack G. To the lower end ofthe spindle G as best seen in Fig. 10 is adjustably secured by means ofa screw as g the chuck G carrying a suitable cutter g. To the front ofthe frame Gr and partly covered as shown by an extension G thereof isanother frame B in a slot 19 in this frame is arranged a block 0 whichis reciprocated by a cam O; to this block is pivoted at b a block bwhich has secured to it a head I) which is normally held in the positionshown in Fig. Sby a spring as 19 In the path of the head I) as it isreciprocated by the cam O is placed a bevel cam B which is adjustablysecured to the frame B by a screw as B. At one side of the head I) asmore clearly shown in plan in Fig. 11 is a former B which has aspecially formed end 19 shaped on it corresponding to an end 2) on thehead I) and behind the end b is a recess 17 and an incline I) is formedon the outside of the former as shown.

Directly within and in line with the former B I arrange a clamping blockF; this block which slides in a suitable groove in the frame B isoperated by an arm 0 which receives motion from a cam 0 whose contour isshown in Fig. 12, and which operates to push forward the clamping blocka short distance so as to form a stop for one end of the wire when it isbent (in a manner to'be explained) then it pushes the clamping block soas to hold the end of the wire, which fits in a groove as fin the faceof the clamping block F, tightly between itself and the end of former Band finally completely withdraws the clamping block. At the side of theclamping block F as shown in Fig. ll is secured a bracketf which extendsa short distance in front of the block but which does not come up to thetop of the block but only so high that the wire can rest on the bracketin line with the groove fin the block before it is securely held betweenthe clamping plate and the former.

Then the wire is completely bent as desired and the clamping plate iswithdrawn so far that the bracket f no longer supports the wire then themechanism best shown in Fig. 6. comes into play to push the Wire downthrough the slot S in the table T where itis guided'by an incline S'into a suitable receptacle S this mechanism consists of a spindlep whichis moved up and down at proper times by a lever c operated by a cam Oand which carries a foot 10 which has two forks p which fit over theplate A.

The manner of operation is as follows: A number of wires ofapproximately suitable length are placed on the feed board if and beingrolled to the front of it fall down in the slot 75 and pile up in themanner shown in Figs. 1 and 5. On setting the machine in motion thefeeders D move forward and separate one wire at a time and feed it downin front of the tucker A, the ends of the wire resting in the bottom ofthe groove 25 an aperture i being provided as shown in Fig. 5 so thatthe ends of the wires can be readily pushed out of their position in thegroove 6 when the wire is bent by't-he tucker. The tucker A thenadvances and bends the wire at w into two arms of a length governed bythe position of the tucker A and plate A. The ends of the wire as theysweep around are supported on the segmental guides e e, the shorter endof the wire coming against the pin 92 in the hollow sleeve N thereuponthe lever c is depressed and the pin 0 comes down on the other side ofthe wire, which is now held between the two pins in a manner shown inFig. 9. The rack M is now moved by its actuating cam O in the directionof the arrow and rotates the sleeve N and the pin 71 around the pin 0'and at the same time moves the plate N slightly on its axis so that theend of the wire is turned into a neat book as 10 The pin 0 is thenraised by the cam C operating through the arm 0 and this part of theoperation is completed. In, the meantime the other end of the wire hasbeen carried around in like manner and riding up the incline b of theformer B it rests somewhere on the top of the former block, the flap his now depressed and the end it of the flap pushes the end of the wirebetween the former B and the clamping block F, this clamping block hasbeen removed so far forward that the bracket f has been put in aposition as shown in Fig. 11 so thatthe end of the wire will not bepushed down too far and when the wire is pushed into proper position theclamping block is so moved by the cam C as to securely hold the wire.When the wire is thus securely held the head I) is moved forward firstbending the wire at right angles over the end b of the former andthen,when the rounded face b of the head I) strikes the cam B itoperates to make a sharp hook in a manner shown in Fig. 11. The hookbeing formed, the head I) is withdrawn and the cutter g on the block Gcomes down and trims off the end of the hook the cuttings convenientlyfalling down in the recess 12. The cutter is moved up and away, theclamping block fully drawn back, the lever c is raised, the tucker Apulled back and the now finished hook being free the foot p is depressedand the hook is pushed through the slot S to the receptacle for finishedhooks, the foot p is raised by the action of its actuating cam O and themachine is ready for another operation.

It will of course be obvious that various devices can be substituted formany of those shown, and while I have described the parts andarrangement which I deem most useful and convenient I do not wish to beconsidered as binding myself to the exact construction shown, and alsoit is obvious that man y of my present devices can be used in otherconnections than in a machine for bending Jacquard hooks. The bendingdevices are all adj ustably secured to the table T and can be arrangedto form any desired size of hook.

Having now described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. In a machine for bending wire the combination with mechanism forbending lengths of wire, of a guide for the wire and feeders D havinginclined slots 01 adapted to separate and feed a single length of wirefrom the guide to the wire bending mechanism.

2. In a machine for bending wire, the combination with a' plate A and atucker for bending the wire over the plate A, of a support for a numberof separate lengths of wire, a guide adapted to conduct the wires fromthe support to feeding mechanism,feeders D for delivering the wire,length by length, between the tucker and plate, and means for operatingthe feeders and bending mechanism.

3. In a machine for bending wires, the combination with a plate A and atucker A for doubling the wire so as to form two arms, of feeders Dhaving inclined slots 01 for delivering the wires singly between thetucker and plate, and means for operating the feeders and bendingmechanism.

4. In a machine for bending wire, the combination with a feeding devicefor delivering single wires, of a tuckerA having a recess a, and groovesa 0. and a plate A adapted to fit in the recess a substantially as andfor the purpose specified.

5. In a machine for bending wire, the combination with means for bendinga piece of wire so as to form two substantially parallel arms, of meansfor turning over the ends of one of the arms so as to form a roundedhook,

.and a cam b and a former B for bending a sharp hook 10 on the other endof the wire substantially as and for the purpose specified.

6. In a wire bending machine the combination with a tucker for bendingthe wire into IIO two substantially parallel arms, of pins n O operatingto hold the wire between them, and

means to give said pins a simultaneous rotary and longitudinal movementwhereby a hook is turned on one end of the wire without pulling itlongitudinally.

7. In a wire bending machine, the combination with a tucker for bendingthe wire into two substantially parallel arms, of pins n 0 operating asdescribed to turn a hook in one arm of the wire, and means for bendingthe other arm of the wire to form a sharp hook w substantially as andfor the purpose specified.

8. In a wire bending machine, the combination with a bevel cam B, of ahead I) pivoted at b, means to reciprocate said head I) so as to causeit to strike the cam B, and a former B over which the head I) is adaptedto be pushed by the reciprocating mechanism and the cam B.

9. In a wire bending machine the combination with a stationary former,of a beveled cam B, a pivoted head b, means to reciprocate said head sothat it will strike and be turned by the cam B, all operating to bend ahook to and cutting mechanism for trimming the end of the hook.

10. In a wire bending machine, the combination with a former B of a headb adapted to be moved over said former by means of cams B and 0 so as tobend a hook on the end of a wire, a cutter having a combined verticaland rotary motion adapted to trim the hook after it is bent by the headI), substantially as specified.

11. In a wire bending machine, the combination with the tucker A andplate A for bending the wire so as to-form ,two substantially parallelarms, of a pin 07, and clamp F for limiting the movement of the arms asthey are bent, an eccentric rack M to rotate and reciprocate the pin 01,to turn a hook 10 in one arm of the wire, and a head b, and former B forbending a sharp hook 10 on the other arm of the wire.

12. In a wire bending machine, the combination with the tucker A andplate A for bending the wire so as to form two substantially parallelarms, of a pin n and clamp F for limiting the movement of the arms asthey are bent, an eccentric rack M to rotate and reciprocate the pin nto turn a hook 10 on one arm of the wire, a head I), and former B forbending a sharp hook w on the other arm of the wire, and a cutter fortrimming the hook 10 w 13. In a wire bending machine, the combinationwith the tucker A and plate A for bending the wire so as to form twosubstan tially parallel arms, of a pin 01 and clamp F for limiting themovement of the arms as they are bent, an eccentric rack M to rotate andreciprocate the pin n to turn a hook 20 on one arm of the wire, a headI) and former B for bending a sharp hook to on the other arm of thewire, a cutter for trimming the hook LU3, and a. pivoted lever c forpushing the wiredownward through a slot in the supporting table whenbent as desired.

14:. In a wire bending machine the combination with a plate A and tuckerA, of the sleeve N having a gear a secured thereto, an eccentric rack Mfor rotating and reciprocating said sleeve, a pin 0 and a pivoted lever0 for moving said pin vertically, as and for the purpose specified.

15. In a wire bending machine the combination with means for bending thewire so as to form two arms, of a pivoted frame N having ahole ninelosinga hollow sleeve N, and a reciprocating spindle 0 arrangedwithin the sleeve N, a'pivoted lever c to reciprocate the spindle 0, aneccentric rack M to rotate and reciprocate the sleeve N, and pins n and0 arranged on the sleeve and spindle respectively, as and for thepurpose specified.

16. In a machine for bending wires for Jacquard hooks, the combinationwith feedersD for feeding wires singly, a tucker and plate for bendingthe wires fed to it by the feeders into two substantially parallel arms,a rotating and reciprocating pin for turninga hook w on one arm, a headZ) operating as described for bending a sharp hook w on the other arm,and a cutter for trimming the last named hook, substantially asspecified.

17. In a machine for bending wires for Jacquard hooks, the combinationwith feeders D for feeding wires singly, a tucker and plate forbendingthe wires fed to it by the feeders into two substantiallyparallel arms, a rotating and reciprocating pin for turning ahook 4,0 onone arm, a head 1) operating as described for bending a sharp hook to onthe other arm, a cutter for trimming the last named hook, a fork shapedfoot 19 fitting over the plate A and means to reciprocate it to push afinished hook off from the machine.

18. In a wire bending machine the combination with means for holding thewire in a fixedposition, of bending mechanism adapted to operate on thewire at a point unequally distant from its ends whereby a U shaped pieceis formed having arms of different lengths, a bending device adapted tooperate on the shorter arm near its end to form a rounded hook, meansfor bending a sharp hook on the long arm. and a cutter for trimming thehook thus formed.

ROBERT C. MANVILLE.

Witnesses:

NATTIS R. BRONSON, M. H. BRENNAN.

